Shigeharu Ohtsuka

Title: Inventor Shigeharu Ohtsuka: Innovations in Electromagnetic Technology

Introduction

Shigeharu Ohtsuka, an accomplished inventor based in Aichi, Japan, has made significant contributions to the field of electromagnetic technology. With a total of four patents to his name, Ohtsuka has driven innovation through his work with well-known companies in the industry.

Latest Patents

Ohtsuka's latest patents reflect his expertise and creativity in developing advanced electrical components. One notable invention is the "Electromagnetic Contactor and a Method of Controlling the Same," which involves a device capable of managing voltage through full wave rectification of alternating current or direct current. This invention ensures efficient control operations through a large pulse width for closing actions and a smaller pulse width for maintaining the closed state. The device also features a detector that measures peak voltage values, which stabilizes the input at a constant level by managing the pulse width based on the detected voltage.

Another significant patent by Ohtsuka is the "Terminal Connecting Device," designed to simplify the alignment process between the male-threaded portion of a terminal screw and the female-threaded hole of a stationary terminal. This innovation not only streamlines the fastening operation but also includes a unique terminal screw guiding member that facilitates the proper engagement of components, supported by a resilient member to enhance functionality.

Career Highlights

Throughout his career, Shigeharu Ohtsuka has collaborated with leading firms, including Mitsubishi Denki and Mitsubishi Electric Engineering Company, Limited. His experience with these industry giants has allowed him to gain invaluable knowledge and expertise in the development of electrical technologies.

Collaborations

Ohtsuka has worked alongside talented professionals, including coworkers Yuji Sako and Hiroyuki Okado. These collaborations have played a vital role in shaping his inventions and driving forward his innovative ideas.

Conclusion

Shigeharu Ohtsuka stands out as a prominent inventor whose contributions have significantly impacted electromagnetic technology. His patents not only highlight his technical proficiency but also demonstrate his commitment to innovation in the field. As technology continues to evolve, Ohtsuka's work remains a testament to the power of creativity and engineering in advancing electrical devices.